A liftable clamping device
By designing a liftable clamping device, the precise position adjustment of the wire is achieved using guide blocks and spring structures. This solves the problem of maintaining the position and posture of the wire in wire harness processing equipment when components are arranged in a compact manner, ensuring that the wire smoothly enters the crimping area and quickly returns to its original position.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HONGGUANG JINGGONG ELECTRIC CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-19
AI Technical Summary
In wire harness processing equipment, existing technologies struggle to maintain the correct position and orientation of wires when components are arranged compactly, especially when the wire entry height needs to be slightly higher than the stamping height, leading to difficulties in the wire processing process.
A lifting clamping device was designed. Through the guide block and spring structure, the clamping jaw assembly can be moved downward to the required height under force and automatically return to the original position when no force is applied. The lifting and lowering of the clamping jaw assembly is driven by a cylinder to achieve precise adjustment of the wire position.
It achieves the correct position and posture of the wires even with a compact component layout, ensuring that the wires can smoothly enter the crimping area to meet the stamping requirements, and automatically return to their original position in a short time.
Smart Images
Figure CN224373779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness processing equipment, specifically a lifting clamping device. Background Technology
[0002] Automotive wiring harnesses are a crucial component of automotive electrical systems, responsible for transmitting power and signals to various vehicle parts. The processing of wiring harnesses requires specialized equipment, including but not limited to wire strippers and fully automatic wire crimping machines. All of these machines rely on wire clamping devices. It is known that when working with wires in wiring harness processing equipment, the default wire entry height should be set slightly higher than the crimping height to ensure the wire can smoothly enter the crimping area. Later, other methods are used to align the wire with the crimping area for crimping. However, in some cases, the components are arranged more compactly. To ensure the wire maintains the correct position and posture during processing, a height-adjustable clamping device is used. This device moves downwards by pressing down on the grippers, allowing the entire gripper mechanism to rise or fall. Summary of the Invention
[0003] This utility model provides a height-adjustable clamping device that allows the gripper assembly to move downwards under force to lower to the required height, and to return to its original position when no force is applied.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A liftable clamping device includes a base plate, a guide block, a gripper assembly, and a cylinder. A support plate is vertically arranged on the front of the top of the base plate, and a top plate is arranged on the top of the support plate. Two guide rods are vertically arranged between the top plate and the base plate. The guide block is sleeved on the two guide rods and is movably in contact with the support plate. A spring is sleeved on the guide rod located at the lower end of the guide block, and the guide block is tightly attached to the top plate under the action of the spring. A receiving area for arranging the gripper assembly is opened on the front side of the guide block. The gripper assembly is movably arranged in the receiving area of the guide block, and its upper end extends out of the receiving area. The cylinder is located on the front of the bottom of the base plate, and its cylinder rod extends out of the base plate and is connected to a connecting plate. The connecting plate is connected to the gripper assembly.
[0006] Preferably, the front side of the guide block is provided with a cover plate, and the gripper assembly is movably disposed on the rear side of the cover plate via a rotating shaft and is located within the receiving area of the guide block.
[0007] Preferably, the gripper assembly includes a left swing arm, a right swing arm, a left connecting arm, and a right connecting arm. The middle portions of the left and right swing arms are movably disposed on the rear side of the cover plate via rotating shafts and are symmetrically arranged in the receiving area of the guide block, with their upper ends extending out of the receiving area. The lower ends of the left and right swing arms are rotatably connected to the left and right connecting arms, respectively. The other ends of the left and right connecting arms are jointly disposed on the connecting plate and rotatably connected to the connecting plate. The upper ends of the left and right swing arms are respectively provided with mutually cooperating left and right grippers.
[0008] Preferably, the left swing arm is integrally formed by an outwardly inclined wedge block and an L-shaped block located on the upper front side of the wedge block. A connecting groove is provided at the lower end of the wedge block, and the left connecting arm is movably disposed in the connecting groove via a rotating shaft. The left gripper is detachably arranged inside the L-shaped block. The left swing arm and the right swing arm have the same structure and are symmetrical from left to right. The left gripper and the right gripper are opposite to each other and are staggered.
[0009] Preferably, the guide block's receiving area is provided with a support cylinder, which is located above the connecting plate and between the left and right connecting arms.
[0010] Preferably, the front side of the receiving area of the guide block is provided with a limiting groove that penetrates its bottom surface, and the connecting plate is movably disposed in the limiting groove and can move up and down.
[0011] As a preferred embodiment, compared with the prior art, the beneficial effects of this utility model are as follows: In this liftable clamping device, the guide block is arranged in a floating manner by means of a spring. In the state of no force, the guide seat is located at the top of the guide rod and is in contact with the top plate. When the left and right grippers are subjected to a downward impact force (the impact force is greater than the return force of the cylinder), the gripper assembly and the guide block move downward as a whole, so that the clamped wire is lowered to the required height to meet the stamping requirements. When there is no force, it automatically returns to the original position under the action of the spring. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the clamping action of this utility model.
[0013] Figure 2 for Figure 1 The exploded diagram.
[0014] Figure 3 for Figure 1 Front view after removing the cover plate.
[0015] Figure 4 for Figure 3 A diagram showing the open shape.
[0016] In the diagram: 1. Base plate; 2. Guide block; 3. Cylinder; 4. Support plate; 5. Top plate; 6. Guide rod; 7. Spring; 8. Connecting plate; 9. Cover plate; 11. Left swing arm; 12. Right swing arm; 13. Left connecting arm; 14. Right connecting arm; 15. Left gripper; 16. Right gripper; 17. Support cylinder; 18. Limiting groove; 21. Receiving area; 111. Wedge block; 112. L-shaped block. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art.
[0018] like Figures 1-4 As shown, this utility model provides a liftable clamping device, including a base plate 1, a guide block 2, a gripper assembly, and a cylinder 3. A support plate 4 is vertically arranged on the front of the top of the base plate 1, and a top plate 5 is arranged on the top of the support plate 4. Two guide rods 6 are vertically arranged between the top plate 5 and the base plate 1. The guide block 2 is sleeved on the two guide rods 6, and its rear side is movably attached to the support plate. A spring 7 is sleeved on the guide rod 6 located at the lower end of the guide block 2. Under the action of the spring 7, the top surface of the guide block 2 is tightly attached to the top plate 5. A receiving area 21 for arranging the gripper assembly is opened on the front side of the guide block 2. The gripper assembly is movably arranged in the receiving area 21 of the guide block, and its upper end extends out of the receiving area 21. The cylinder 3 is arranged on the front of the bottom of the base plate 1, and its cylinder rod extends out of the base plate and is connected to a connecting plate 8. The connecting plate 8 is connected to the gripper assembly.
[0019] The base plate 1 is used to fix the entire clamping device and also to arrange other components. The guide block 2 mainly serves a guiding function. Its receiving area 21 is composed of a polygonal receiving area that runs through the upper part of the guide block and a vertical receiving area that runs through the bottom surface of the guide block. The polygonal receiving area is used to arrange the gripper assembly, and its shape is adapted to the movement trajectory of the gripper assembly. The vertical receiving area is used to arrange the connecting plate, and the connecting plate 8 extends into the polygonal receiving area and connects with the gripper assembly.
[0020] like Figure 1The diagram shows the clamping device in the clamping state. During operation, the cylinder drives the gripper assembly to open, facilitating the insertion of the wire. After the wire is inserted, the cylinder drives the gripper assembly to close and clamp the wire harness. The clamping device moves the wire to the crimping area. Then, other components exert a downward impact force on the top of the gripper assembly. Because the air pressure used by the cylinder is relatively low, this downward impact force is greater than the cylinder's return force, causing the cylinder rod to retract inward. This allows the gripper assembly to move downward and contact the guide block, then drive the guide block to compress the spring and move downward simultaneously. The cylinder rod also retracts inward, lowering the wire to the required height for crimping. Then, it returns to its original position under the action of the spring. Because the downward movement is short and the pressing time is very short, less than 1 second, the cylinder is basically unaffected.
[0021] Furthermore, a cover plate 9 is provided on the front side of the guide block 2, and the gripper assembly is movably disposed on the rear side of the cover plate 9 via a rotating shaft 10, and is located within the receiving area of the guide block 2. The gripper assembly is in contact with the surface of the receiving area of the guide block, but is not fixed to the guide block. The guide block located at the lower part of the receiving area has two symmetrical bosses on both sides, and the cover plate is fixed to the front side of the bosses by bolts.
[0022] Furthermore, the gripper assembly includes a left swing arm 11, a right swing arm 12, a left connecting arm 13, and a right connecting arm 14. The middle portions of the left swing arm 11 and the right swing arm 12 are movably disposed on the rear side of the cover plate 9 via a pivot 10, and are symmetrically arranged in the receiving area of the guide block 2, with their upper ends extending out of the receiving area respectively. The lower ends of the left swing arm 11 and the right swing arm 12 are rotatably connected to the left connecting arm 13 and the right connecting arm 14 respectively. The other ends of the left connecting arm 13 and the right connecting arm 14 are jointly disposed on the connecting plate 8 via a pivot, and are rotatably connected to the connecting plate 8. The upper ends of the left swing arm 11 and the right swing arm 12 are respectively provided with mutually cooperating left grippers 15 and right grippers 16.
[0023] Cylinder 3 drives connecting plate 8 downward via cylinder rod. Connecting plate 8 drives the ends of left connecting arm 13 and right connecting arm 14 that are movably connected to it to move downward and rotate in opposite directions, that is, the other ends of left connecting arm 13 and right connecting arm 14 move closer to each other. This, in turn, drives left swing arm 11 and right swing arm 12 to rotate around their respective pivots 10, causing their lower ends to move downward and gradually move closer together, while their upper ends move away from each other. That is, left gripper 15 and right gripper 16 are in an open state. Cylinder 3 drives connecting plate 8 upward. Connecting plate 8 drives the ends of left connecting arm 13 and right connecting arm 14 that are movably connected to it to move upward and rotate in opposite directions, that is, the other ends of left connecting arm 13 and right connecting arm 14 move away from each other. This, in turn, drives left swing arm 11 and right swing arm 12 to rotate around their respective pivots 10, causing their lower ends to move upward and move away from each other. The upper ends of left swing arm 11 and right swing arm 12 gradually move closer together, that is, left gripper 15 and right gripper 16 are in a clamped state.
[0024] Specifically, the left and right swing arms and the cover plate are arranged in this movable manner. The middle part of the left swing arm 11 and the right swing arm 12 are respectively provided with through holes, and the cover plate 9 is provided with two corresponding through holes. The rotating shaft 10 passes through the through holes of the cover plate and into the through holes of the left and right swing arms respectively. The bolts pass through the outside of the left and right swing arms and tighten the rotating shaft 10, so that the end of the rotating shaft 10 is the fixed end, and the end located in the through hole of the cover plate is the movable end.
[0025] The left swing arm 11 is integrally formed by an outwardly inclined wedge block 111 and an L-shaped block 112 located on the upper front side of the wedge block 111. A connecting groove is provided at the lower end of the wedge block 111, and the left connecting arm 13 is movably disposed in the connecting groove via a rotating shaft. The left gripper 15 is detachably arranged inside the L-shaped block 112. The left swing arm 11 and the right swing arm 12 have the same structure and are symmetrical from left to right. The left gripper 15 and the right gripper 16 are opposite to each other and staggered.
[0026] To limit the extension distance of the cylinder rod, a support cylinder 17 is provided in the receiving area of the guide block 2. The support cylinder 17 is located above the connecting plate and between the left and right connecting arms. The support cylinder also serves to support the cover plate. A convex through hole is provided on the cover plate at a position corresponding to the support cylinder, and a threaded through hole is provided on the guide block at a position corresponding to the support cylinder. Bolts pass through the convex through hole and the support cylinder, and are threaded into the threaded through hole of the guide block.
[0027] Furthermore, to ensure the vertical movement of the connecting plate, a limiting groove 18 penetrating its bottom surface is provided on the front side of the receiving area of the guide block 2, and the connecting plate 8 is disposed within the limiting groove 18 and can move up and down. This limiting groove is located below the support cylinder.
[0028] In use, the entire device is positioned appropriately on the wire harness processing equipment via the base plate. In the non-working state, the clamping device remains clamped. During operation, the cylinder moves the connecting plate downwards, which in turn moves the gripper assembly downwards. Under the action of the guide block, cover plate, and support cylinder, the left and right grippers open to facilitate wire insertion. Once the wire is in place, the cylinder moves the connecting plate upwards, which in turn moves the gripper assembly upwards. Under the action of the guide block, cover plate, and support cylinder, the left and right grippers close. The wire is clamped; then the clamping device moves the wire to the crimping area. At the same time, other components apply a downward impact force to the top of the gripper assembly, causing the gripper assembly to move downward and come into contact with the guide block. Then, the guide block compresses the spring and moves downward simultaneously. The cylinder rod also retracts inward, lowering the clamped wire to the required height to meet the stamping requirements. After stamping is completed, the guide block moves the gripper assembly upward under the action of the spring, returning to its original position. Simultaneously, the cylinder drives the left and right grippers to open, facilitating the movement of the wire.
Claims
1. A lifting clamping device, characterized in that: The device includes a base plate, a guide block, a gripper assembly, and a cylinder. A support plate is vertically mounted on the front of the top of the base plate, and a top plate is mounted on top of the support plate. Two guide rods are vertically mounted between the top plate and the base plate. The guide block is sleeved on the two guide rods and is movably in contact with the support plate. A spring is mounted on the guide rod at the lower end of the guide block, and the guide block is tightly attached to the top plate under the action of the spring. A receiving area for accommodating the gripper assembly is opened on the front side of the guide block, and the gripper assembly is movably mounted in the receiving area of the guide block, with its upper end extending out of the receiving area. The cylinder is located on the front of the bottom of the base plate, and its cylinder rod extends out of the base plate and is connected to a connecting plate, which is connected to the gripper assembly.
2. The lifting clamping device according to claim 1, characterized in that: The front side of the guide block is provided with a cover plate, and the gripper assembly is movably disposed on the rear side of the cover plate via a rotating shaft and is located within the receiving area of the guide block.
3. The lifting clamping device according to claim 2, characterized in that: The gripper assembly includes a left swing arm, a right swing arm, a left connecting arm, and a right connecting arm. The middle portions of the left and right swing arms are movably mounted on the rear side of the cover plate via rotating shafts and are symmetrically arranged within the receiving area of the guide block, with their upper ends extending out of the receiving area. The lower ends of the left and right swing arms are rotatably connected to the left and right connecting arms, respectively. The other ends of the left and right connecting arms are both mounted on the connecting plate and rotatably connected to it. The upper ends of the left and right swing arms are respectively provided with mutually cooperating left and right grippers.
4. The lifting clamping device according to claim 3, characterized in that: The left swing arm is integrally formed by an outwardly inclined wedge block and an L-shaped block located on the upper front side of the wedge block. A connecting slot is provided at the lower end of the wedge block, and the left connecting arm is movably set in the connecting slot through a rotating shaft. The left gripper is detachably arranged inside the L-shaped block. The left swing arm and the right swing arm have the same structure and are symmetrical from left to right. The left gripper and the right gripper are opposite to each other and are staggered.
5. The lifting clamping device according to claim 1, characterized in that: The guide block's receiving area is provided with a support cylinder, which is located above the connecting plate and between the left and right connecting arms.
6. The lifting clamping device according to claim 1, characterized in that: The guide block has a limiting groove on its bottom surface that extends through the front side of the receiving area, and the connecting plate is movably disposed in the limiting groove and can move up and down.